JPS6234461Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention is applicable to light emitting display components such as light emitting diodes (hereinafter referred to as LEDs), which have lead legs that require polarity distinction, or other components. The present invention relates to a component mounting structure that can be easily and reliably incorporated into electrical equipment and electronic equipment.

[Conventional technology]

Generally, when incorporating a large number of light-emitting display components such as LEDs into electrical or electronic equipment, accurate positioning and lead legs (+ and
-) It is necessary to make sure the polarity of the parts is correct, and conventionally, multiple parts are placed in a holder made of insulating material such as a rectangular parallelepiped plastic with holes for the lead legs of the component.
There is one in which the lead legs of an LED, etc. are passed through, and the lead legs are bent at right angles and soldered to a printed circuit board so that they face the opening of the display panel. However, this holder only functions as a spacer (adapter) to align the printed circuit board and the display panel opening, and is simply a rectangular parallelepiped insulator with multiple pairs of holes for the lead legs to pass through. Therefore, even if assembly is performed while checking the polarity of the lead legs, human errors may still occur due to numerous assemblies, and the printed circuit board, holder, and parts may be connected as one unit, resulting in incorrect display. Since the positional relationship with the panel cannot be precisely regulated, it is necessary to enlarge the opening of the display panel to absorb dimensional errors.

As a prior art, Japanese Utility Model Application Publication No. 54-12054 discloses a holder 1 for attaching a component 4 such as a light emitting diode to a support means 8 such as a printed circuit board in a plug-in manner.

Furthermore, Japanese Utility Model Publication No. 53-156084 describes a structure in which a supporting protrusion 12 is provided to determine the mounting height of the light emitting diode 1 when the light emitting diode 1 is mounted on the printed circuit board 3.

Further, Japanese Utility Model Publication No. 54-12374 discloses an electrical insulator 1 having a groove 7 for attaching a lead wire of a light emitting diode by bending it by 90 degrees.

In addition, Utility Model Application Publication No. 55-60680 discloses that when the shapes of the leads are different, the holes in the holder are shaped to match the shapes of the respective leads (for example, 132, 13
3) The structure for drilling is described, and it was published in 1983.
No. 165186 and Japanese Utility Model Application No. 55-7332 disclose a structure in which a funnel-shaped hole is provided in the holder so that the lead leg can be easily inserted.

[Problem that the invention attempts to solve]

However, all of the above conventional techniques
There is a problem in that it is not possible to easily center the entire LED.

The present invention was developed in consideration of the above points, and is a component holder equipped with large and small through-holes that distinguish the lead legs with protrusions for polarity identification, and height-determining protrusions to regulate the mounting position and height. The purpose of the present invention is to provide a component mounting structure that allows the lead leg to be easily inserted and attached to a predetermined position without misunderstanding the polarity of the lead leg by using a center positioning protrusion provided on the lead leg. It is something.

[Means for solving problems]

The component mounting structure of the electrical equipment of the present invention will be described with reference to the drawings. A component holder for mounting a component having lead legs 2 and 3 whose polarity needs to be differentiated is provided with two large and small parts corresponding to the lead legs. Through-holes 7 and 8 are bored, and a pair of height-determining protrusions 10 are provided to determine the installation height of the component. In the funnel-shaped structure in which the polarity is smaller, a polarity identification protrusion 14 is provided on one of the lead legs of the component, and the upper part of one of the through holes of the component holder is made larger in diameter than the polarity identification protrusion 14. The other upper part is formed to have a smaller diameter than the polarity identifying protrusion 14, and the lead legs 2 and 3 are further provided with center positioning protrusions 15, so that the outer diameter of the protrusions 15 forms a small diameter through hole when the lead legs are inserted and set. It is characterized in that it is formed to be slightly smaller than the inner diameter of 8.

[Effect]

When inserting the lead legs 2 and 3, even if the insertion start position is slightly off center, it will be automatically corrected and automatically guided along the funnel-shaped inner wall surface of the small diameter through hole 8, and will be at the specified center position. automatically set to .

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings. The drawing shows a case where an LED is used as an example of a component. Reference numeral 1 denotes an LED holder for mounting an LED 4 having lead legs 2 and 3 whose polarity needs to be differentiated. The LED 4 consists of an LED body (light emitting part) 5, a collar part 6 that can be moved slightly in any direction, and lead legs 2 and 3. The LED holder 1 is provided with two large and small through holes 7 and 8 corresponding to the lead legs 2 and 3, and
A pair of height-determining protrusions 10 are provided to determine the mounting height of the LED main body 5 (light-emitting portion), and furthermore, elastic claws 12, spacers 13, etc. for fitting onto the printed circuit board 11 are provided. This LED holder 1 is generally integrally molded from plastic. Further, one lead leg of the LED, for example, lead leg 2, is provided with a polarity identifying protrusion 14 for identifying a cathode or an anode. One of the through holes of the LED holder 1 (for example, the through hole 7) has a large diameter so that the polarity identification protrusion 14 can be inserted, and the other of the through holes (for example, the through hole 8)
are formed to have a small diameter so that the polarity identification protrusion 14 cannot be inserted therein, and each through hole is formed in a funnel shape whose diameter decreases as it goes downward so that the lead leg can be easily inserted. Reference numeral 15 denotes a center positioning protrusion provided on the lead leg, which is used to center the entire LED and to float the LED body when connected to a printed circuit board. LED
A plurality of LEDs 4 are held through the lead legs 2 and 3 through the through holes 7 and 8 of the holder 1, and the lead legs 2 and 3 are
It is bent at a right angle under (rear) the LED holder 1 and soldered to the printed circuit board 11. The LED holder 1 holds a printed circuit board 11 between elastic claws 12 and spacers 13. 16 is the soldering part,
17 is a claw portion of an elastic claw, 18 is a display panel, and 20 is an opening in the display panel.

[Effect of idea]

Since the present invention is constructed as described above, if the polarity of the lead legs 2 and 3 is incorrect, one of the lead legs will not fit into the through hole, which will be immediately obvious. Furthermore, the mounting height of the LED main body 5 is precisely regulated by the pair of height determining protrusions 10 in relation to the positional relationship with the opening 20 of the display panel 18, and even if there is a slight error in the positional relationship, the LED holder Since it floats above 1, it is absorbed. In addition, the through hole is formed in a funnel shape,
In addition, since the polarity identification protrusion 14 is made long enough to be inserted only into the upper part of the large through hole 7, there is an advantage that the polarity identification protrusion 14 prevents the LED from being installed at an angle.

Further, the outer diameter of the center positioning projection 15 of the lead leg is slightly smaller than the inner diameter of the small diameter through hole 8 in the inserted and set state shown in FIG. Therefore, when inserting the lead leg,
Even if the insertion starting position is slightly off center, it will be automatically corrected and automatically guided along the funnel-shaped inner wall of the small diameter through hole 8, and will be automatically set to the specified center position (see Figure 2). state).
In this way, the effect of centering the small diameter through hole 8, the large diameter through hole 7, the lead leg, and the entire LED body 5 can be obtained.

As explained above, in the component mounting structure of the present invention, a protrusion for center positioning is provided on the lead leg of the component, and a protrusion for polarity identification is provided on one of the lead legs. It is designed to be incorporated into electrical and electronic equipment using a component holder with funnel-shaped large and small through-holes of decreasing diameter and a pair of height-determining protrusions, so it is possible to polarize a large number of LEDs and other components. It can be easily and reliably assembled without making mistakes, it can also absorb any errors in the positional relationship with the display panel, and it can also prevent components such as LEDs from being installed at an angle. It has an effect.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention.
The figure is a plan view of the LED holder, Figure 2 is an enlarged cross-sectional view taken along the line A-A in Figure 1 (however, the illustration is rotated 90 degrees), and Figure 3 is an enlarged cross-sectional view taken along the line B-B in Figure 1. It is a diagram. In addition, Figures 2 and 3 are
It shows a combination of LEDs, printed circuit boards, and equipment display panels. 1...LED holder, 2, 3...Lead leg, 4
... LED, 5 ... LED body, 6 ... collar, 7,
8...Through hole, 10...Height determining protrusion, 11...
...Printed circuit board, 12...Elastic claw, 13...Spacer, 14...Protrusion for polarity identification, 15...Protrusion for center positioning, 16...Soldering part, 17...Claw part, 18...Display panel, 20...Opening.

Claims (1)

[Scope of utility model registration request] Two large and small through holes 7, 8 corresponding to the lead legs are bored in a component holder for attaching a component having lead legs 2, 3 whose polarity needs to be differentiated,
In addition, a pair of height-determining protrusions 10 are provided for determining the installation height of the component, and each through hole is formed in a funnel shape whose diameter decreases toward the inside so that the lead leg can be easily inserted. A polarity identification protrusion 14 is provided on one of the lead legs of the component, and a polarity identification protrusion 1 is provided on the upper part of one of the through holes of the component holder.
4, the other upper part of the through hole is formed to have a smaller diameter than the polarity identification protrusion 14, and the lead leg 2,
3 is provided with a center positioning protrusion 15, and the protrusion 15
A component mounting structure for an electrical device, characterized in that the outer diameter of the lead leg is slightly smaller than the inner diameter of the small diameter through hole 8 when the lead leg is inserted and set.